diff --git a/build.sh b/build.sh
index 9cc5786..bfb04a8 100755
--- a/build.sh
+++ b/build.sh
@@ -47,5 +47,10 @@ elif [ -x "$(command -v dmd)"  ]; then d_compiler="dmd";
 else echo "Unable to find D compiler"; exit -1; fi;
 
 $codegen_src="${script_dir}/vulkan_codegen.d"
+$codegen_out="${build}/vulkan_codegen"
+
+$d_compiler $codegen_src $out $codegen_out
+
+$codegen_out $build/$base_name.spv
+
 
-$d_compiler $codegen_src $build/$base_name.spv